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Commit 243bc4bb authored by Fenglin Wu's avatar Fenglin Wu Committed by Subbaraman Narayanamurthy
Browse files

pwm: qti-lpg: Write PWM_SYNC before enabling PWM 



Update PWM_VALUE_SYNC to make sure PWM_VALUE will be updated everytime
before enabling PWM channel.

CRs-Fixed: 2360456
Change-Id: I02e0e98fc500fca6ba85d4ab39cbf955c15b4fc7
Signed-off-by: default avatarFenglin Wu <fenglinw@codeaurora.org>
parent 93a396a8

drivers/pwm/pwm-qti-lpg.c

+13 −0
Original line number Diff line number Diff line
@@ -867,6 +867,19 @@ static int qpnp_lpg_pwm_enable(struct pwm_chip *pwm_chip, 
		return -ENODEV;

	}



	/*

	 * Update PWM_VALUE_SYNC to make sure PWM_VALUE

	 * will be updated everytime before enabling.

	 */

	if (lpg->src_sel == PWM_VALUE) {

		rc = qpnp_lpg_write(lpg, REG_LPG_PWM_SYNC, LPG_PWM_VALUE_SYNC);

		if (rc < 0) {

			dev_err(lpg->chip->dev, "Write LPG_PWM_SYNC failed, rc=%d\n",

					rc);

			return rc;

		}

	}



	rc = qpnp_lpg_set_glitch_removal(lpg, true);

	if (rc < 0) {

		dev_err(lpg->chip->dev, "Enable glitch-removal failed, rc=%d\n",